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(No Model.)

W. E. DERRICK. Paper Cutting Machine.

Patented June 7, i881.

Fz'df UNITED STATES ATENT OFFICE.

WILLIAM E. DERRICK, OF PALMYRA, ASSIGNOR TO HENRY JOHNSON, OF

NEW YORK, AND GEORGE M. BO\VMAN AND WILLIAM I. REID, OF PAL- MYRA, N. .Y.

PAPER-CUTTING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 242,515, dated June 7, 1881.

Application filed July 19, 1880.

To all whom it may concern:

Be it known that I, WILLIAM E. DERRICK, of Palmyra, Wayne county, New York, have invented a certain new and useful Improvement in Paper-Cutting Machines; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, in whicho Figure 1 isa front elevation of the machine.

Fig. 2 is a side elevation looking at right angles to Fig. 1. Fig. 3 is a detail view showing the bevel-gears and crank for operating the knife.

Myimprovement telates to that class of paper-cutting machines in which a reciprocating knife hung by inclined links is employed, the same being operated by a hand-lever, and the whole so arranged that a shearing cut is pro- (luced.

The invention consists in the combination, with the swinging knife-bar hung on links, of two bevel-gears, a hand-lever, crank, and pitman, constructed,arranged, and operating aS hereinafter more fully described.

In the drawings, A represents a frame, having a table, B, upon which the paper is placed and clamped in place for the purpose of being cut, and an arch, G, for supporting the work 0 ing parts.

D is the knife-bar, to which is attached the knife F, which is hung at opposite ends on inclined or diagonal links, a a, pivoted at one end to the knife-bar and at the other to the tra me.

It will be seen that as the knifeis forced up and down it will also be moved endwise, and will thus produce a shearing cut. Machines of this kind are well known and in common use.

Most machines of this class have the lever for operating the knife located at one end of the machine, and working up and down in line with and parallel to the knife. I am aware, however, that the lever has also in some in- 4 5 stances been used at right angles to the knife,

being moved forward and back to operate the knife. Such levers are more convenient and effective than the other form, since less room is occupied, and the operator does not have to step to one side or around the machine to operate it, but can reach it readily, and thus re- (No model.)

tain control of the paper while operating the knife. My improvement relates to this class.

I) I) represent the bevel-gears, which engage together, as shown in Fig. 3. The gear I) has a shaft, 0, to the outer end of which the handlever E is attached, the lever working forward and back at right angles to the plane of the cutter. The other gear, 0, has a crank, d, to which is attached a con.necting-rod,f, the other end extending up to the end of the knife-bar and being pivoted thereto. When the handlever is turned the bevel-gears will be correspondingly turned, and motion will be imparted to the knite.

By using the bevel-gears, and the lever work ing at right angles to the plane of the knife, as above (ll-scribed, the machine is rendered much simpler and more effective than other machines having the right-angled hand-lever, since the lever can thus be located so that a direct movement forward and back, without the operators moving Oli] of his position, can be readily produced. Much expense is saved over the old form, and much less space is required in setting up and orking the machine. The gears maybe built permanently in the machine, or they may be made separate attachments applicable to old machines.

I do not claim a hand-lever and gearing for giving motion to the knife such as isshown in Patent No. 100,506; but

What I claim as new, and desire to secure by Letters Patent, is

The combination,\vith the knife-bar I), hung on inclined links a a and having a diagonal cutting action, of the two bevel-gears b 1;,engaging together below the knife-bar, the hamllevei E, attached to the shaft of gear I) and having a motion at right angles to that of the knife-bar, the crank (1, formed on the shaft of gear I), and the pitmanf, extending from the crank to the end of the knife-bar and jointed to said parts, as shown and described, and for the purpose specified.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

WM. E. DERRICK. Witnesses:

GEORGE E. S'rErsoN, S. D. ANDERSON. 

